Abstract: A variable rate transmission system transmits a variable rate data packet including an accompanying rate indication signal indicative of the transmission rate of the variable data packet. The data packet can be spread using a long pseudonoise (PN) code, the mask of which can be selected in accordance with the transmission rate of the variable rate data packet. A preamble, providing the transmission rate, can be punctured into an outgoing pilot signal. The rate indication signal can be encoded in accordance with a set of orthogonal functions that are part of the indication of the transmission rate of the data packet.
Type:
Grant
Filed:
September 22, 1998
Date of Patent:
September 28, 2004
Assignee:
Qualcomm Incorporated
Inventors:
Peter J. Black, Gadi Karmi, Nagabhushana T. Sindhushayana